How to tell my husband we are pregnant?

So I just found out today that we are pregnant. This will be baby #2. My husband is taking me and our 11 month old son out to High Tea for my first Mother's Day. I was thinking about telling him then and then hopefully Mother's Day will be as exciting as last Father's Day (our son was born on Father's Day last year!) Here is my idea what do you guys think? I found it online and would make my own. I was thinking the watter could bring this out around some tea for him. Any other ideas would be awesome!!